Yangon – Telenor Myanmar Limited (“Telenor”) ensures its network are stable and operational during monsoon and aftermath of natural disasters. Telenor made sure a recent heavy rain that inundated most part of Yangon did not disrupt its network in the commercial city.
The company also confirms its network in cyclone-affected areas aftermath of Cyclone Mora that made landfall on 30 May is stable and operational since last Friday. Mora, with a strength of category-1 hurricane, damaged hundreds of houses and religious and community infrastructures in Ayeyarwady Region and Chin and Rakhine States, according to the Ministry of Social Welfare, Relief and Resettlement.
Rakhine is the most-affected state by the cyclone, and segment of mobile network in Rakhine’s 9 townships and Chin’s 4 townships was interrupted during and right after the cyclone due to microwave antenna misalignment and power outage caused by heavy gusts. Network in other affected areas were not affected during and after the cyclone and remain functional.
“Right after the cyclone we deployed our well experienced technical team, in collaboration with tower companies, to restore the affected network and since last week our mobile network in all the affected areas are now stable and operational. Structure of no single site was damaged by the cyclone as all mobile towers are designed to withstand extreme weathers and sustain up to 225 km/h wind speed in cyclone-prone area like Rakhine,” said Jai Prakash, Chief Technology Officer at Telenor.
Telecom towers in Myanmar are built to sustain minimum 130 km/h wind speed in areas like Kachin, Kayah, Kayin to maximum 225 km/h in disaster prone area like Rakhine. Towers in Ayeyarwaddy and Yangon Regions are designed to sustain up to 190 km/h wind speed.
A named tropical storm is designated as a cyclone when its maximum sustained wind speed is more than 119 km/h. According to the Saffir-Simpson Hurricane Wind Scale cyclones are classified into 5 categories and categories 3 to 5 are designated as severe tropical cyclones. A tropical cyclone with maximum sustained wind speeds of 119-153 km/h is classified as category-1. A cyclone with maximum sustained wind speeds of 210-249 km/h is classified as category-4 and with wind speeds above 249 km/h as category-5. Telecom towers in Rakhine are designed to withstand up to category-4 severe tropical cyclones.
Telecom towers are very less likely to be damaged by extreme condition of natural disasters such as earthquakes, cyclones, fires even though there is a slight probability. As protective measures for other natural disasters like flooding, based on historical flooding data of a region telecom towers are constructed to withstand the highest effects of flooding occurred in a particular region.
Telenor launched its network in Ayeyarwady Region in early 2015 and is serving customers in all 26 townships through more than 610 sites across the region. Telenor expanded its network to Rakhine in May 2016 and with close to 220 sites the company’s network now covers all 17 townships in the state. The company has about 30 sites in Chin State and is planning to commercially launch its services in the state soon.
Telenor today operates Myanmar’s largest and fastest growing data network spanning more than 7,500 sites nationwide, serving close to 19 million customers in all States, Regions and territories.